Merge pull request #6 from lulurun/2.0

start of 2.0
update bower version to 1.1.0
Merge pull request #7 from lulurun/master

fix calling public method between envs
update version to 1.1.1
minor fix for env loading
update version 1.1.2
fix bower.json
start to split implementation
add pubsub.js
added env.js
add more files
Merge branch 'master' of https://github.com/gree/fractaljs into xiaolu-master